Photos

An operator monitors a train where copper cathodes are loaded for shipping to a port, at the Chuquicamata mine near Calama city April 1, 2011. World no.1 copper miner Codelco halted operations on July 28, 2015 at its key Chuquicamata mine as a week-long contract workers' strike intensified, chief executive Nelson Pizarro said. The contract workers had blocked access roads to the project, he said. Chuquicamata produced 340,400 tonnes of copper in 2014. Picture taken April 1, 2011. REUTERS/Ivan Alvarado